Primary care practice-based care management for chronically ill patients (PraCMan) in German healthcare: Outcome of a propensity-score matched cohort study.

BACKGROUND: Growing prevalence of chronic diseases is a rising challenge for healthcare systems. The Primary Care Practice-Based Care Management (PraCMan) programme is a comprehensive disease management intervention in primary care in Germany aiming to improve medical care and to reduce potentially avoidable hospitalisations for chronically ill patients. OBJECTIVES: This study aimed to assess the effect of PraCMan on hospitalisation rate and related costs. METHODS: A retrospective propensity-score matched cohort study was performed. Reimbursement data related to patients treated in general practices between 1st July 2013 and 31st December 2017 were supplied by a statutory health insurance company (AOK Baden-Wuerttemberg, Germany) to compare hospitalisation rate and direct healthcare costs between patients participating in the PraCMan intervention and propensity-score matched controls following usual care. Outcomes were determined for the one-year-periods before and 12 months after beginning of participation in the intervention. RESULTS: In total, 6148 patients participated in the PraCMan intervention during the observation period and were compared to a propensity-score matched control group of 6148 patients from a pool of 63,446 eligible patients. In the one-year period after the intervention, the per-patient hospitalisation rate was 8.3% lower in the intervention group compared to control (p = 0.0004). Per-patient hospitalisation costs were 9.4% lower in favour of the intervention group (p = 0.0002). CONCLUSION: This study showed that the PraCMan intervention may be associated with a lower rate of hospital admissions and hospitalisation costs than usual care. Further studies may assess long-term effects of PraCMan and its efficacy in preventing known complications of chronic diseases.

Continuity in general practice and hospitalization patterns: an observational study.

BACKGROUND: High continuity of care is a key feature of strong general practice. This study aimed to assess the effect of a programme for enhancing strong general practice care on the continuity of care in Germany. The second aim was to assess the effect of continuity of care on hospitalization patterns. METHODS: We performed an observational study in Germany, involving patients who received a strong general practice care programme (n=1.037.075) and patients who did not receive this programme (n=723.127) in the year 2017. We extracted data from a health insurance database. The cohorts were compared with respect to three measures of continuity of care (Usual Provider Index, Herfindahl Index, and the Sequential Continuity Index), adjusted for patient characteristics. The effects of continuity in general practice on the rates of hospitalization, rehospitalization, and avoidable hospitalization were examined in multiple regression analyses. RESULTS: Compared to the control cohort, continuity in general practice was higher in patients who received the programme (continuity measures were 12.47 to 23.76% higher, P< 0.0001). Higher continuity of care was independently associated with lowered risk of hospitalization, rehospitalization, and avoidable hospitalization (relative risk reductions between 2.45 and 9.74%, P< 0.0001). Higher age, female sex, higher morbidity (Charlson-index), and home-dwelling status (not nursing home) were associated with higher rates of hospitalization. CONCLUSION: Higher continuity of care may be one of the mechanisms underlying lower hospitalization rates in patients who received strong general practice care, but further research is needed to examine the causality underlying the associations.

Strong primary care and patients' survival.

Primary healthcare is the cornerstone of any healthcare system. A major health system reform to strengthen primary care has been implemented in Germany since 2008. Key components include: voluntary participation, intensive management of patients with chronic diseases, coordination of access to medical specialists, continuous quality improvement, and capitation-based reimbursement. The objective of this study was to assess the effect of this reform on survival of enrolled patients. We conducted a comparative cohorts study with 5-year follow-up, starting in the year 2012 in Baden-Wuerttemberg, Germany. Participants were 1,003,336 enrolled patients and 725,310 control patients. A Cox proportional hazards regression model was applied to compare survival of enrolled patients with a composed control cohort of non-enrolled patients, adjusted for a range of patient and physician characteristics. Average age of enrolled patients was 57.3 years and 56.1% were women. Compared to control patients, they had lower mortality (Hazard Ratio: 0.978; 95% CI: 0.968; 0.989). Participation in chronic disease management programs had independent impact on survival rate (Hazard Ratio 0.744, 95% CI: 0.734; 0.753). We concluded that strong primary care is safe and potentially beneficial in terms of patients' survival.

Effect of involving certified healthcare assistants in primary care in Germany: a cross-sectional study.

OBJECTIVES: Growing prevalence of chronic diseases and limited resources are the key challenges for future healthcare. As a promising approach to maintain high-quality primary care, non-physician healthcare professionals have been trained to broaden qualifications and responsibilities. This study aimed to assess the influence of involving certified healthcare assistants (HCAs, German: Versorgungsassistent/in in der Hausarztpraxis) on quality and efficacy of primary care in Germany. DESIGN: Cross-sectional study. SETTING: Primary care. PARTICIPANTS: Patients insured by the Allgemeine Ortskrankenkasse (AOK) statutory health insurer (AOK, Baden-Wuerttemberg, Germany). INTERVENTIONS: Since 2008 practice assistants in Germany can enhance their professional education to become certified HCAs. PRIMARY AND SECONDARY OUTCOME MEASURES: Claims data related to patients treated in practices employing at least one HCA were compared with data from practices not employing HCAs to determine frequency of consultations, hospital admissions and readmissions. Economic analysis comprised hospitalisation costs, prescriptions of follow-on drugs and outpatient medication costs. RESULTS: A total of 397 493 patients were treated in HCA practices, 463 730 patients attended to non-HCA practices. Patients in HCA practices had an 8.2% lower rate of specialist consultations (p<0.0001), a 4.0% lower rate of hospitalisations (p<0.0001), a 3.5% lower rate of readmissions (p=0.0463), a 14.2% lower rate of follow-on drug prescriptions (p<0.0001) and 4.7% lower costs of total medication (p<0.0001). No difference was found regarding the consultation rate of general practitioners and hospital costs. CONCLUSIONS: For the first time, this high-volume claims data analysis showed that involving HCAs in primary care in Germany is associated with a reduction in hospital admissions, specialist consultations and medication costs. Consequently, broadening qualifications may be a successful strategy not only to share physicians' work load but to improve quality and efficacy in primary care to meet future challenges. Future studies may explore specific tasks to be shared with non-physician workforces and standardisation of the professional role.

Patients with somatoform disorders: More frequent attendance and higher utilization in primary Out-of-Hours care?

BACKGROUND: One significant health policy challenge in many European countries at present is developing strategies to deal with the increase in patient attendance at Out-of-Hours care (OOHC), whether this is at OOHC-Centres in primary care settings or hospital emergency departments (ED). FAs (FAs) presenting in OOHC are a known challenge and previous studies have shown that FAs present more often with psychological problems and psychiatric comorbidities rather than severe physical complaints. FAs may be also contributing to the rising workload in OOHC-Centres in primary care. The aim of this study was to determine attendance frequencies and health problem presentation patterns for patients with and without somatoform disorders (ICD-10 F45 diagnoses) in OOHC-Centres in primary care. Some of these somatoform disorders may have a psychiatric character. Moreover, we wanted to compare health care utilization patterns (pharmacotherapy and hospitalizations) between these patients groups. METHODS: Routine OOHC data from a large German statutory health insurance company in the federal state of Baden-Wuerttemberg were evaluated. 3,813,398 health insured persons were included in the data set from 2014. The data were initially made available for our study group in order to evaluate a comprehensive evaluation programme in German primary care, the "Hausarztzentrierte Versorgung" (HZV), loosely translated as "family doctor coordinated care". We used the ICD-10 codes F45.0-F45.9 in regular care to identify patients with somatoform disorders and compared their health care utilization patterns (attendance rates, diagnoses, prescriptions, hospitalization rates) in OOHC to patients without somatoform disorders. Attendance rates were calculated with multivariable regression models in order to adjust for age, gender, comorbidities and for participation in the HZV intervention. RESULTS: 350,528 patients (9.2%) of the 3,813,398 insured persons had an F45-diagnosis. In comparison with the whole study-sample, patients with an F45-diagnosis were on average seven years older (51.7 vs. 44.0 years; p<0,0001) and the percentage of women was significantly higher (70.1% vs 53.3%; p<0,0001). In OOHC, as opposed to normal office hours, the adjusted rate of patients with an F45-diagnosis was 60.6% higher (adjusted for age, gender and co-morbidity) than in the general study-sample. Accordingly, in OOHC, prescriptions for antidepressants, hypnotics, anxiolytics but also opioids were significantly higher than in the general study population i.e. those without F45- diagnoses. However, an F45 diagnosis was only made in 3.45% of all F45 patients seen in OOHC in 2014. CONCLUSIONS: Patients with somatoform disorders were more FAs in both regular office hours and in OOHC in primary care settings. In OOHC, they are normally not identified as such because the somatoform illness is secondary to other acutely presenting symptoms such as pain. While it is acknowledged that it is difficult to make an exact diagnosis in this complex group of somatoform disorders in an OOHC setting, it is still important to develop continuing education programmes for medical staff working in OOHC, to support effective recognition and response to the specific needs of this complex patient group.

Evaluation of a program to strengthen general practice care for patients with chronic disease in Germany.

BACKGROUND: A program to strengthen general practice care for patients with chronic disease was offered in Germany. Enrollment was a free individual choice for both patients and physicians. This study aimed to examine the long-term impact of this program. METHODS: Two comparative evaluations were done, at 4 and 5 years (T1 and T2) after start of the program. In each year, patients in the program were compared with patients in usual care. Measures were based on routinely collected data and concerned 11 aspects of primary care and hospital care. Study groups were compared, using regression analysis adjusted for confounders and clustering. RESULTS: Data on 1.187.597 and 1.591.017 eligible patients were available for the analysis for T1 and T2, respectively. Compared to usual care, the program was associated with more visits to the GP per patient (adjusted difference at T2: +1.98), more drugs prescribed per patient (+0.071), lower percentage of drugs that should be avoided (-0.699), and lower yearly medication costs per patient (-85.39 euro). The number of referrals to ambulatory specialists, either with or without referral from GP, was reduced at T2. In hospital care, the program was associated with fewer hospital admissions per patient per year (-0.017) and fewer avoidable hospital admissions of all admissions (-1.165%). Total hospital costs were slightly higher in T1, but lower in T2. Days in hospital and number of readmissions were lower at T2 only. CONCLUSION: The program has increased the role of general practice in healthcare for patients who chose to be included in the program of intensified general practice care.

Differences between Practice Patterns of Conventional and Naturopathic GPs in Germany.

BACKGROUND: Limited evidence exists whether practice patterns of general practitioners (GPs) who have additionally completed training in naturopathy are different from those of conventional GPs. We aimed to assess and compare practice patterns of GPs in conventional and naturopathic GPs. METHODS: Routine data from 41 GPs (31 with and 11 without additional qualification in NP, respectively) and 180,789 patients, drawn from the CONTinuous morbidity registration Epidemiologic NeTwork (CONTENT)-registry and collected between 2009 and 2014, were used. To assess practice patterns determinants of (non-)phytopharmaceutical prescriptions, referrals and hospitalizations were analyzed using mixed-effects Poisson regression models. As explanatory variables, the qualification of the GP in NM, the age group and sex of the patient, as well as bivariate interactions between these variables were considered. RESULTS: GPs additionally qualified in naturopathy exhibited higher rates of phytopharmaceutical prescriptions (p<0.034; independent effect) compared to conventional GPs. This association was not observed with respect to non-phytopharmaceutical prescriptions. However, interaction effects between qualification and age group as well as sex were present with respect to both phytopharmaceutical and non-phytopharmaceutical prescriptions (all p<0.001). No further independent association existed between qualification and either referral rates or hospitalization rates, but again interactions between qualification and age group and sex (only referrals) were statistically significant (all p<0.0001). CONCLUSION: The results show that the rate of phyto-pharmaceutical prescriptions are generally higher when the GP has an additional qualification in naturopathy. Further differences in practice patterns between conventional and naturopathy GPs could be subject to certain age groups and sex. However, the magnitude of these differences seem to be rather small.

Prescribing differences in family practice for diabetic patients in Germany according to statutory or private health insurance: the case of DPP-4-inhibitors and GLP-1-agonists.

BACKGROUND: The objective of this study was to analyze prescription decisions for family practice (FP) patients with Diabetes mellitus type 2 (DM2) using the case of the incretin mimetics Dipeptidyl peptidase-4 (DDP-4) inhibitors and Glucagon-like peptide-1 (GLP-1) agonists dependent on patients' health insurance status (statutory or private) in Germany. This study is important since the scientific debate is still open with regard to DPP-4-inhibitors and GLP-1-agonists, where some critics are raising questions on potential long-term risks for patients. METHODS: Data for this analysis were sourced from the German health services research register CONTENT (CONTinuous morbidity registration Epidemiologic NeTwork), in which FP health services information, generated by family practitioners, is continuously collated, e.g. patients' health insurance status, morbidity and pharmacotherapy. Patients with Diabetes mellitus type 1 (DM1) were excluded from the study. RESULTS: From the family practices collaborating in the CONTENT research network, there were 7298 patients treated with pharmacotherapeutic agents for DM2 between 01.09.2009 and 31.08.2014. 586 (8.03 %) of these patients had private insurance. Prescriptions for the incretin mimetics were 40.6 % higher (9.7 vs. 6.9 %; p < 0.0001) for patients with private insurance compared to patients with statutory health insurance. This finding was confirmed with multivariable analyses. CONCLUSIONS: There was a statistically significant difference found in prescription patterns according to the patient's health insurance status for the incretin mimetics in this sample population of German patients with DM2. Obviously, these differences result from the eligibility for reimbursement according to patients' health insurance status. Whether incretin mimetics pose specific long term risks for particular patients is yet to be determined.

On a European collaboration to identify organizational models, potential shortcomings and improvement options in out-of-hours primary health care.

UNLABELLED: Abstract Background: Out-of-hours care (OOHC) provision is an increasingly challenging aspect in the delivery of primary health care services. Although many European countries have implemented organizational models for out-of-hours primary care, which has been traditionally delivered by general practitioners, health care providers throughout Europe are still looking to resolve current challenges in OOHC. It is within this context that the European Research Network for Out-of-Hours Primary Health Care (EurOOHnet) was established in 2010 to investigate the provision of out-of-hours care across European countries, which have diverse political and health care systems. In this paper, we report on the EurOOHnet work related to OOHC organizational models, potential shortcomings and improvement options in out-of-hours primary health care. Needs assessment: The EurOOHnet expert working party proposed that models for OOHC should be reviewed to evaluate the availability and accessibility of OOHC for patients while also seeking ways to make the delivery of care more satisfying for service providers. OUTCOMES: To move towards resolution of OOHC challenges in primary care, as the first stage, the EurOOHnet expert working party identified the following key needs: clear and uniform definitions of the different OOHC models between different countries; adequate-ideally transnational-definitions of urgency levels and corresponding data; and educational programmes for nurses and doctors (e.g. in the use of a standardized triage system for OOHC). Finally, the need for a modern system of data transfer between different health care providers in regular care and providers in OOHC to prevent information loss was identified.

[Evaluation of family doctor centred medical care based on AOK routine data in Baden-Württemberg]. / Evaluation der Hausarztzentrierten Versorgung in Baden-Württemberg auf der Basis von Routinedaten der AOK.

The agreement on family-doctor centred care (Hausarztzentrierte Versorgung, "HzV") pursuant to Sect. 73b, Volume V of the German Social Security Code became effective in Baden-Wuerttemberg, Germany, on July 1(st), 2008. This complex intervention, which is voluntary for both family doctors and patients, aims to strengthen the coordinative function of family practices. As a result, this intervention is believed to increase the quality of medical health care for persons insured - in the medium to long-term - and thereby, ideally, to additionally save expenses. Working package 1 was one out of a total of four working packages and focused on the evaluation of potential intervention effects of the HzV intervention based on the analyses of AOK routine data in Baden-Wuerttemberg. A total of 1.44 million insured persons were eligible for the present analyses. Insured adults voluntarily participating in the family doctor-centred health care intervention (HzV insured persons: n=580,924 in the intervention group) of the AOK were compared to those not participating in this intervention (non-HzV insured persons: n=862,237 in the control group). For both HzV and non-HzV insured persons, a comparison of each outcome of interest (encounters with family doctors, encounters with specialists, rate of hospitalisations, duration of hospitalisations, rate of re-hospitalisations, costs of pharmacotherapy, rate of polypharmacy, rate of Me-Too pharmaceuticals) was conducted for quarters 3 and 4 of 2008 as well as for quarters 3 and 4 in 2010. Both groups of insured persons differed in that they either participated in the HzV intervention between January 1, 2009 and June 30, 2011 or not. Before January 1, 2009 individuals in both groups did not participate in the HzV intervention. This design allowed for both longitudinal and cross-sectional comparisons. Moreover, the design implicitly controlled for potential seasonal bias. In order to adjust for relevant covariates (insured persons' age, gender, nationality, insurance state, morbidity), multivariate multilevel regression models were developed and applied. On average, HzV insured persons were about 3 years older (56.2 ± 27.3 vs. 53.1 ± 18.4 years) and had higher levels of comorbidity (Charlson Comorbidity Index: 1.45 ± 1.86 vs. 1.19 ± 1.71). No significant differences in terms of rate and duration of hospitalisations were observed. The same applied to the number of rehospitalisations within 30 days. After adjustment for covariates, however, an increase in visits to the respective family doctor of 38% was found in the intervention group. Moreover, a decrease of encounters to specialists with and without referrals from family doctors could be observed (-29.8 % and -12.5%, respectively). Interestingly, even costs of pharmacotherapy, polypharmacy and prescriptions of Me-Too drugs were statistically significantly lower or less frequent, respectively, in the group of HzV insured persons. In conclusion, besides the observed associations in terms of pharmacotherapy, the HzV intervention appears to have advantageous effects in terms of family doctor centred health care.

Expenditure of chronic venous leg ulcer management in German primary care: results from a population-based study.

The aim of the study was to determine the demand on health service utilisation and to estimate the therapeutical costs caused by patients with chronic leg ulcer (CLU) in German primary care. A population-based case-control study was conducted using electronic medical records of 116 059 patients extracted from the CONTENT primary care database of Heidelberg, Germany, between April 2007 and March 2010. The drug and non drug prescription rates among patients with CLU were analysed by means of a unified German identification key and compared with those of patients with chronic venous insufficiency (CVI) without CLU. In the 3-year-contact group, CLU patients had significantly more patient-doctor encounters (55·9 versus 40·3; p < 0·0001), more referrals to home-care services (6·12 versus 3·08; p < 0·0001), and more admissions to hospitals (0·9 versus 0·4; p < 0·0001) than CVI patients, but no difference in referrals to specialists. The annual treatment costs for drugs and non drugs in CLU patients were substantially higher than in CVI patients (1645·75 € versus 1188·17 €; p < 0·0001). Wound dressings were identified as the most cost-enlarging factor. Summarising, CLU patients in primary care settings place a higher demand on health service utilisation and need nearly one-third higher therapeutical costs compared to venous patients without ulceration.

[Needs assessment of a longitudinal training course in vocational training within the Verbundweiterbildung(plus)]. / Weiterbildung mit Inhalt - Bedarfsanalyse zur Konzeption eines überregionalen Schulungsprogramm in der Verbundweiterbildung(plus).

BACKGROUND: In Germany content-related vocational training mostly is the responsibility of the trainees themselves. The aim of this needs assessment is to explore the requirements of a longitudinal training course in vocational training. METHODS: A combined quantitative-qualitative needs assessment was chosen. We used data of a continuous record keeping system in primary care to assess the occupational field, and the needs of vocational trainees were explored in a qualitative survey. RESULTS: Data of more than 120,000 consulting problems in primary care were attributed to different medical expertises by frequency (orthopaedics 22.1%; internal medicine 17.2%; dermatology 12.2%; ear, nose, and throat medicine 11.9%). They revealed a high concordance between the needs derived from the consulting problems and the vocational trainees' needs identified in the qualitative survey (421 text units in the categories: medical expertise, competencies and skills and reflection on one's own performance). CONCLUSION: The results of this needs assessment demonstrate the importance of vocational trainees' needs and the findings of health services research for improvement of content-related vocational training. Furthermore, the results form the basis for longitudinal training courses in vocational training, as shown in the approach of the training course within the training programme Verbundweiterbildung(plus).

[Antihypertensive pharmacotherapy of patients in primary care with either a statutory or private health insurance]. / Antihypertensive medikamentöse Therapie von gesetzlich und privat versicherten Patienten in der Primärversorgung.

BACKGROUND AND PURPOSE: In Germany, hypertension has a prevalence of about 20%. Cardiovascular morbidity and mortality are closely associated with hypertension. Therefore, antihypertensive medical treatment is of crucial importance. Currently, five groups of drugs for the medical treatment of hypertension are available: diuretics, beta-receptor blockers, calcium antagonists, angiotensin-converting enzyme (ACE) inhibitors, and angiotensin II receptor blockers. Besides medical considerations for the treatment of hypertension costs of treatment and other economic aspects become more and more important. Within this article, the antihypertensive treatment of insurants of the statutory health insurance and the private health insurance is compared with regard to the medical treatment and associated costs. METHODS: The analyzed data derive from the general practice morbidity research network CONTENT (CONTinuous morbidity registration Epidemiologic NeTwork). The implementation of this network is funded by the German Federal Ministry of Research and Education (BMBF) for a continuous registration of health-care utilization, morbidity, course of disease, and outcome parameters within primary care. RESULTS: Altogether 4,842 patients from the participating general practitioners were regularly treated with antihypertensive drugs in 2007 and corresponding episodes were documented within electronic medical records. The proportion of insurants of the private health insurance was 7.6%. The costs of the antihypertensive medical treatment within the total sample in 2007 constituted 1.03 million Euros overall and per patient on average 212.82 Euros. Although the regarded sample of private health insurants was less morbid and the sum of defined daily doses (DDDs) within the observation period was notably lower (582.6 vs. 703.1; p < 0.0001), the annual therapy costs of the private health insurants compared to the statutory health insurants were 35.2% higher (280.29 Euros vs. 207.29 Euros; p < 0.0001). Hence, costs per DDD for antihypertensive medical treatment for private health insurants were 63.2% higher than for statutory health insurants. This refers to the great proportion of angiotensin II receptor blockers as well as the low proportion of generic drugs prescribed for private health insurants. CONCLUSION: Antihypertensive treatment with original drugs and/or angiotensin II receptor blockers is an expensive option. Based on the actual state of knowledge it must be questioned critically whether this constitutes a superior treatment option concerning the potential for lowering high blood pressure levels and organ protection.

Evaluation of a culturally adapted German version of the Patient Assessment of Chronic Illness Care (PACIC 5A) questionnaire in a sample of osteoarthritis patients.

OBJECTIVE: The chronic care model and the 5A approach have achieved widespread acceptance and reflect the core elements of patient-centred care in chronic diseases, including arthritis. Appropriate assessment tools are indispensable to assess whether provided care is in alignment with these evidence-based conceptual frameworks of care. The aim of this study was to examine the validity of a translated and culturally adapted version of the Patient Assessment of Chronic Illness Care (PACIC 5A) questionnaire among osteoarthritis (OA) patients. METHODS: Of 300 administered questionnaires, 236 (78.6%) were returned. Established statistical approaches were used in order to assess psychometric properties. Test-retest reliability was tested in 75 randomly selected patients who received the questionnaire a second time after 2 weeks. The EUROPEP questionnaire was used in order to address external validity. RESULTS: Scale internal consistency was confirmed with values ranging from 0.52 to 0.97 for Pearson's r. Internal consistency reliability was satisfying: Cronbach's alpha was 0.78 or higher for all scales. Test-retest reliability (intraclass correlation coefficient) exceeded 0.77. Correlations with the EUROPEP, which is not organized according to a conceptual approach to care, were only strong in corresponding scales. CONCLUSIONS: The PACIC 5A is a reliable and valid instrument to assess the congruency of care to the chronic care model of OA patients. Its use is encouraged in quality improvement projects but also in further research.

The impact of concomitant depression on quality of life and health service utilisation in patients with osteoarthritis.

To assess the impact of concomitant depression on quality of life (QoL) and health service utilisation of patients with osteoarthritis (OA). Data were collected from 75 primary care practices in Germany. Totally, 1,250 patients were consecutively approached; 1,021 (81.7%) questionnaires were returned and analysed. Measures included sociodemographic data, the Arthritis Impact Measurement Scale (AIMS2-SF) and the Patient Health Questionnaire (PHQ-9) to assess depression. A PHQ-9 score > or = 15 was defined as reflecting depression. Patients with a depressive disorder achieved significantly (all P < 0.001) higher scores in all AIMS2-SF dimensions. They had more contacts to general practitioners (P < 0.01), orthopaedics (P < 0.01) and to providers of Complementary Alternative Medicine offered e.g. by healers. Concomitant depression aggravates the burden of OA significantly. This results in increased health service utilisation. Appropriate treatment of depression would appear not only to increase QoL but also to lower costs by decreasing health service utilisation.

Comparison of AIMS2-SF, WOMAC, x-ray and a global physician assessment in order to approach quality of life in patients suffering from osteoarthritis.

BACKGROUND: Chronic diseases like osteoarthritis (OA) substantially affect different dimensions of quality of life (QoL). The aim of the study was to reveal possible factors which mainly influence general practitioners (GPs) assessment of patients' QoL. METHODS: 220 primary care patients with OA of the knee or the hip treated by their general practitioner for at least one year were included. All GPs were asked to assess patients' QoL based on the patients' history, actual examination and existing x-rays by means of a visual analog scale (VAS scale), resulting in values ranging from 0 to 10. Patients were asked to complete the McMaster Universities Osteoarthritis Index (WOMAC) and the Arthritis Impact Measurement Scale2 Short Form (AIMS2-SF) questionnaire. RESULTS: Significant correlations were revealed between "GP assessment" and the AIMS2-SF scales "physical" (rho = 0.495) and "symptom" (rho = 0.598) as well as to the "pain" scale of the WOMAC (rho = 0.557). A multivariate ordinal regression analysis revealed only the AIMS2-SF "symptom" scale (coefficient beta = 0.2588; p = 0.0267) and the x-ray grading according to Kellgren and Lawrence as significant influence variables (beta = 0.6395; p = 0.0004). CONCLUSION: The results of the present study suggest that physicians' assessment of patients' QoL is mainly dominated by physical factors, namely pain and severity of x-ray findings. Our results suggest that socioeconomic and psychosocial factors, which are known to have substantial impact on QoL, are underestimated or missed. Moreover, the overestimation of x-ray findings, which are known to be less correlated to QoL, may cause over-treatment while important and promising targets to increase patients' QoL are missed.